NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) assigns preliminary ratings to fifty-three classes of mortgage pass-through certificates from Sequoia Mortgage Trust 2017-7 (SEMT 2017-7), a prime RMBS transaction. SEMT 2017-7 contains both prime jumbo (99.8%) and high-balance conforming (0.2%) collateral to borrowers with prime attributes. The SEMT 2017-7 mortgage pool is composed of 489 first-lien mortgage loans with an aggregate principal balance of $350,401,847 as of the cut-off da
